Liner setting tool and safety joint



"i E. FF. BERNEX" AL.

ETTXNG TOOL AND SAFETY JOINT 2 Sheets-3heet l Filed July .3J

LINER S tm: 2Q), 5925.

vE. P. BERNEY ET AL LINER SETTING TOOLA AND SAFETY JOINT heet 2 FiledJuly 3, 1925 Patented den., 2li, i925,

ZEKER SET'PING TQL AND MFETY JINT.

nppneaon sieebuiy a, ieee.

To all whom t may camcom:

Be it known that we, EDWARD l?. Benner and EMMETT H. lil'cli/AHAN,citizens of the United; Statesv residing at Huntington 6 Beech, countyof Ora-nge, State of Californio, and Brea, in the county of Orange andState of Celifornie., respectively, have invented new and usefulimprovements in Liner Settingl rllools and Safety Joints, of i which the'following is a specification.

This invention relates to deep well apperatns, and. more' particularlyto deep well tools end joints.

As is well known in deep well operations, otter or es the well isdrilled, s casingiis lowered into the well and for one or another causethe casing: cannot be further lowered :md takes e stationery positionbelow which it is desired not only to sink the well, but to also providen continuation of the casing. This continuation is commonly known as theliner. in some ceses. this liner een be lowered freely after the hole isdeepened, but in other ceses the well formation packs up in the casingend in the lower portion of the hole in the form of sand or mud, and itis en object of the present invention to provide means on'tacilitetingthe lowering ot theliner into the desired position in the lower portionof the kcasing and to the bottom of the well. v

A further object is to provide a liner setting tool and :in improvedjoint of extreme ly simple construction, and which is substantial andr/elieblein action, and. is readily operable both in the making andbreaking joints in the string; of elements orminga liner lowering toolor tool for other purposes. An object, in this connection, is to providea joint of substantially threadless, effective form which is of suchdesign :md construction that the joint provides for the ready attachmentand detachment of ns associated elements without danger of lun-'screwing other screw threaded, connecting portions of the apparatus inhand.v

Other objects and advantages will he made manifest in the 'followingspecificetion of an embodiment of the invention ii insti-ated in theaccompanying drawings, wherein j Fig. 1 is s longitudinal section andpen ves used for the lowering et' e Serial Ito; 849,302.

tial elevation of well e peratus in which o liner is being lowered #yutilization lot the present joint. i I

Fig. 2 is a vertical section and partiel elevation of e well showing the'liner in,

`lowered position below the casing ieed.

Fig. 3 is e detail, vertical, sectional view showing e liner providedwith e guide on 6o its lower end, and showing the nrrengement of thewash pipe nozzle resting the nipple for the circulation of wash, Waternpwerdly about the liner being lowered and insideof the casing.

Fig. 4lis :i longitudinel section of .the joint body es applied to eliner.

Fig. 5 is n cross section on the line 5-5 of Figure Il. 'l

Fig. 6 is s longitudinal section of the setl0 ting tool or mandrelassembled upon e Water pipe which is to he lowered by the tool while thelatter is connected to its combined, complementary joint body.

Fig. 7 is e longitudinal eentrel section l5 showing the mandrel esinterlocked with the joint body and. packed therein.

Fig. 8 is e cross section on line 8`8 of Figure 7. j

In Figure l, the invention is illustrated il@ Y string of pi e sectionsor tubes 3, which is to be set in t e well casing 2, which is positionedin the well. W, so that the string of pipe sections will forni asubstantial continuation of the @e casing 2, and is commonly known as s.liner. The present invention includes en improved moons for making njoint between the upper end of the liner 3, end :i liner j set-ting,ytool whereby the liner can be lower no ed to the requisite position inthe casing.

The tool end joint consists oit' what may be considered as on invertedshoe comprising substantially :i cylindricalbody 5 of substantialproportions, the lower end of which is internally threaded at G toreceive the contiguous end of the liner 3, and the j. upper end of thejoint body 5 is 'shown as inwardly and downwardly lievelled et 7 toprovide a convenient and effective guide l0@ means for leading the toolor mandrel part 10 into the chamber 5 of the joint 5; this chamber beingpreferably cylindrical inA form and having en inside diemeter rip-1proximating the inside diameter of the liner 3 so as to form acontinuous, substantially smooth bore.

The joint 5 is prov'ieed with a plurality of longitudinal, internal orincloeed slots or recesses 8, each of which has a transverse or Lportion 8a, and this intersects a blind slot 8* having portionsextending up and down from a cross slot 8a. ln other words, the slot 8,as a whole, is of generally bayonet slot form but has oppositelyextending end portions formed by the slot 8:

The tool 'body or mandrel 10 is of suhstantial and tubular form, and hasa lower end of such diameter as to slip into the bore of the body7 5,and is provided with a plurality of slot entering pins 1l, disposed soas to register with the respective open ends of the slots 8 in the joint5. The upper end of the setting tool body 1.0,.whieh will hereinafter beIreferred to as the mandrel, is internally threaded to receive the lowerend of a string of tool sections lf2, the upper ends of which areadapted to be received by any suitable elevator E, whereby the r tooland the string; of lining 3 can be lowered in progressive steps into thew ell casing -2 to the desired position, such as is indicated in Figure2.

After the liner has been set by the tool, the joint connection betweenthe tool and the liner is readily disconnected by the slight lowering ofthe tool string and the mandrel l0 so as to disengage the bayonet pins'from the upper ends of the slot portions 8b t'o bring the pins oppositeto the transverse slot portions 8al and then, hy an upward pullingmovement of the tool, the bayonet Dine run freely ont of the slots 8 andthev disconnection is completed. Tfn some operations it may happen thatthere vwill be a torque inthe tool string, and it may happen that,without the knowledge of the vdriller, the bayonet pins may drop fromthe upper end of the bayonet slots 8b, and in such case, because ott thetorque in the tool line, the bayonet pins would be thrown. out into thecross slots 8, and then,

should the tool string be pulled for any canse, the parte would beunintentionally disconnected. To prevent such as accident, which mightresult in the loss of the entire well and ali oi the labor expended, wepro-` vide a tool joint having the bayonet slots 8b with portionserdended down below the cross slots 8'". This downward extension ot' thebayonet slots, thereire, serves to pre vent the dropping bayonet pinsfrom swing# ing into the ores-s slots 8" until the bayonet pins havebeen intentionallydowered to the bottoms of the bayonet slots 8"7 andthen intentional torqne applied tothe tool string followed by elevatinguet the tool string will result in the l'iayonet pins being pulledintothel cross and thence ont et' the slots 8 when it is desired to makea disconneetioni l After the well liner has been lowered into thecasing, as is shown in Figure 2, then the disconnection is made and thesetting; tool is pulled from the well, leaving the joint hotly 5:.lttached to the upper end of the liner, l

When conditions are involved in which the liner will not readily passinto the well because of the presence ot' formation sand or mud, it isthen necessary to introduce into the liner a means for dischargingcirculating, liquid ahead of the liner end so as to wash. away 'theinipcding.;l formation material. Usually, the lower ends of the liners 3are provided with slices l5, and the slices are provided with 4ittingfsknown as guides, ono ot which is shown at lG, and this'has,A a een trai,circulating opening 16,

1When the liner is heine; lowered, a water pipe P is adapte/l to belowered along with the liner, and the lower end of the 'water pipe has anozzle N applied to and resting on the Iguide 6, and registering withthe circulation hole 16 so that circulating water or liquid may beforced down through the water pipe P and thence into the im peelingsand, which latter will be washed away and carried up inside of thecasing and outside of the liner, thus clearing the way for the liner tobe lowered downf llihen washing in a. liner, as just described, the.wash pipe P is run down into the liner through the hollow setting toolmandrel l0, and preferably the watertight lioint is made between thewater pipe and the mandrel, and this is accomplished by a, packing glandi8, in which may be cem- 'pressefh against the pipe l", packing material19, and also against the lower threaded end of the mandrel to which thepacking gland 18 is secured.

lit is also desired to provide a waientight joint between the tool bodyor'portion 5 and the mandrel l0, to prevent leakage of the circulating;water upwardly between the mandrel and the joint body 5. For thatpurpose, there is around the lower end of the mandrel a packing hand 20,one end of which is engaged hy al packingr compression ring 2l. Thelower eud of the setting; tool body or mandrel l!) is shown as turneddown at l()a to form a seat for the packing: band 20, which is adaptedto ,be expanded by compression under the ring: 21. outward ly againstthe smooth, cylindrical face o" of the joint bod 5, provided mediatclyof the ends of the gody The exterior face of the joint body 5 isprovided with Alongitudinal circulation channels 5 to permit thereadyupward iow of the circulating'liquid within the casing 2 andoutside of the liner 3.

rom the abo-ve it will l1, seen that we lIIU have provided anextremelysiinple, practicable, substantial andl readily operable means`for providing a readily disconnect-A ible joint between associatedelements in a pipe and tool line, and further, have pro? yvided meansfor adapting the device to form a packing .means in cases where pressureliquid is forced down throu h the liner setting tool and joint. Furt er,it will be scentliat the improved joint forms a safety type ofconnection between combined means adapted to be lowered into a deepwell, the joint providing for the re- I 4by the present invention, thedanger of unscrewing parts of the apparatus above the' safety joint issubstantially eliminated by reason of 'the'provision of the presentbayonet slot joint structure which enables disconnection of jointedsections without tendency .to unscrew the usual threaded joints of thestrings.

Further embodiments, ,modifications and variations: may be resorted towithin the principle of the invention.

What isclaimed is:v

1. A combined setting tool and safety joint comprising a hollow tubularjoint bodyvprovided with a recess extending downwardly upon theinterior' surface thereof, a second recess formed upon the interiorsurface of said body communicating with the iirst re-` ces's andextending substantially horizontally of the body, recesses extendingabove and below the second recess and communicating' therewith, and alinin setter including a. mandrel provided witi a pin receivable insaidrecesses. 2. A combined setting tool and: safety joint comprisingahollow, tubular joint body provided with bayonet slots, and a liningsetter including a mandrel provided `with bayonet pins adapted tointerlock in the slots of the joint body, the bayonet slots each consisting of an open end receiving slot having a transversepart i'iiergmgwith oppositely extending slot portions which are 1n alignment, so thatwhen thc bayonet pins of the v mandrel drop from the upper of saidportions, they will tend to passiiito the lower of said portions andthereby be held against unintentional disconnection. 1

3. A combination setting tool and safety joint comprising a hollow,tubular joint body provided with bayonet slots. and a lining set- \tei'including a mandrel providedwith bay- .'oint comprising a hollbw,

Ahaving a reduced end on which onet pinsadapted to interlock in theslotsof the joint body, the joint body being provided withlongitudinally extendlng, exterior circulation channels.

4. A combined settinfr tool and safety tubular joint dy provided withbayonet slots, a lining setter including a mandrel Lprovided wit bayonetpins adapted to interlock in the slots of the joint body,and means forforming a liquid-ti vht joint betwee'n the inserted mandrel and t ejoint body. v '5. A combined setting tool and saffet joint comprisina`hollow, tubular joint body provided with ayonet slots, a lining setterL including a mandrel provided with bayonet pins ada ted to interlock inthe slots'of the joint bof. and means for forming a liquid- Gittiglitjoint Abetween the inserted'n'iandrel and i the joint body,thejoint body having 'a' smooth, cylindrical portion, and said means`includin a packing medium adapted to be expand against said pressed on te mandrel. l

'6. A combined setting tool and' safety joint com )rising a hollow,tubular joint body provided with bayonet slots, a linin portion and com-.setter including a mandrel" provided wit bayonet pins vadapted tointerlock in the slots of the joint body, and means for4 forming aliquid-tight joint between the inserted mandrel and the joint body, thejoint body having 'a smooth, cylindrical portion below the said ba cnetslots, and said means includin a pac ng medium adapted to be expandeagainst saidportion 'and compressed on the mandrel. 1 7. A ,combinedsetting `tool. andjoint comprising a hollow, tubular'f joint bodyprovided with bayonet slots, a linin setter including a mandrel providedwit bayonet pins adapted to interlock in the slots of the joint-body,and means for forming a liquid-tight joint between the inserted ysafety'mandrel and the joint body, the joint bod having a smooth, cylindricalportion, an said means including a packing inedium adapted to beexpanded against said portion and compressed on the mandrel, the mandrelthe packing means is arranged.

8.' A combined setting tooland safety joint comprising ahollow, tubular'oint body provided with bayonet slots, and a lining setter includingamandrel provided with bayonet pins adapted .to interlock 'in the slotsof the joint body, the' mandrel being tubular and adapted to reyles`ceive a Water pipe, and means on the mandrel.

for making a leak-proof joint between the mandrel and an ,insertedwalter pipe.

IIn testimonywhereof we have signed our names to this specilication. y

\ `E. P. BERNEY.

E. H. MCMAHAN.

